Work-feeding device for boring or drilling machines.



A. 0. MORSE.

WORK FEEDING DEVICE FOR BORING OR DRILLING MACHINES.

APPLICATION [new JUNE 30.1915.

1,261,840. Patented Apr. 9, 1918.

2 SHEETS-SHEET I. Flg. 1.

\nvenfor. AIberI O.-Morse. WWW yawn Allis.

A. O. MORSE.

WORK FEEDING DEVICE FOR BORING 0R DRILLING MACHINES.

APPLICATION FILED JUNE 30.15MB.

Patented Apr. 9, 1918.

2 SHEETSSHEET 2.

Inv enTo r. AIberI O. Morse,

7M A'fiys ts eerie-8 ALBERT O. MORSE, OE LEOMINSTER, MASSACHUSETTS.

WORK-FEEDING DEVICE FOR BGRING OR DRILLING MACHINES.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed .Tune 30, 1915. Serial No. 37,352.

To all whom it may concern:

Be it known that I, ALBERT O. Monsn, a citizen of the United States, residing at Leominster, county of \Vorcester, State of 5 Massachusetts, have invented an Improvement in \Vork-Feeding Devices for Boring or Drilling Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to work-feeding devices for boring or drilling machines, and has for its object to provide a novel device of this nature which can be readily applied to any boring or drilling machine and by means of which the work to be bored or drilled will be fed automatically with an intermittent motion so as to properly space the holes as they are bored or drilled.

While the invention is capable of use genwas as t at ias i it da ger" are: is the e i t a; s

Jae ii 3 5E of a boring machine embodying my inventlon;

Fig. 2 is a plan view of the work-feeding device;

Fig. 8 is a section on the line wm, 2; Fig. i is a section on the line yy, Fig. 3; Fig. 5 shows a framework element of a baby carriage with the holes bored therein.

My invention is adapted for use in connection with any boring or drilling machine. I have shown in Fig. 1 a simple upright boring machine .comprising a post or standard 1 having a work-table 2 extending therefrom on which the work to be drilled is supported and provided With a drill spindle 3 operable in bearings 4 and driven by a belt 5 from a driving pulley 6. The drill spindle is connected at its upper end to alever 7 pivoted at S to a bracket 9. This lever has a spring 10 connected thereto which 7 5 tends normally to raise the drill, and it'also g :1 y gaif g j valet; e g' gfii l" a a t ieg-wd-i 8 stress eem i" state a $35: eas eaeeea- J3 Y a as a zi etde a; Weep as e 8 5558314381 8 S ei i Se seats 9' ii "a? sets at i ii i" "if-ragga liters X i t l l pl.- Ar d. L ii lag ed? {a ie Wi is genes as a t ar anger. I a 1 .se is i a seaii a gas eazeeeet lg g $1 3 81 area are get- .i is as sang;

e i 1 is een if as is; 8 Le t as its, i ea .H L -t-i L iv. 8''? Suki a $88 the faeti i d a; i s a a i 1% s: as a are a a gate a ,s 4-8 1 gul s? llamr seats a t er 8 .t g n ii its his as at a .F s e i a is is e as t tres; an is we ace a e; age are i igti it tgt 5 0 Q 85 gt igizfie m ai i idg l" u' tidieil g at at sap c 5 sti ma at is? a E, 3 u g Q which theroll 16 isiournaledis offsetfrom the portion 21 thereof. This portion 23 .7 is

which extends a pin or projection 26 extending lat a y-from the f amelfi, said-pin:

having a spring 27 thereon, one end of which eng gesthe' eye and the other end of e which engages a collar 28 adjustably mounted on the projection 26. The spri-ng'2 7 thus tends o u n. the shaftrizl d arry the BEST AVAILABLE COPY 1,2ei,s4o

eXtends throu-gh aslotf'l" formed in the end of the member 32 and has a collar 46 'provided with a-loop or eye hrough presserroll 16 toward the'feedroll'lo; This construction permits stock 17 of different widths tobeoperated on and the spring 27 constructedthat-asthe lever? rises to withdraw the drill fromthe' stock after a hole is "hore d, the feed roll 15 will be turned forward. The feed roll 15 has rigid therewith a hub .or drum :29 which is encircled by a clutch "band 30, ioneend .of said band being connectedat 31 to an actuating arm or mem- "ber 32 and the other end ofthe band being connected tosaid arm at'33. Said actuator nnennloer"32 is not pivotally mounted on any supportybut is'a loose or floating member, andin practice, it restson the upper sideof the feed wheel 15. This arm 32 isprovided with the eam'surface 3e so constructed that twhjen the outer e1id35'of the arm is moved it'o th eleft Fig. 4:, the cam surface .34 will eausethe clutch' band to beltig'htened about the drun1 29, thus locking the arm to p, drum, afterlwhich' further movement of 'e'aetu'atorf toward the left Fig. 4 will ,perate toturn the drum29'and thus turn "H 16 feed roll On the other hand, move t'ofthe actuator 32 to the right Fig. 4

islip on'the drum 29. Therefore, when the "ae'tuatori32 is moved to the left Fig. 4 the I feed wheel 15, will be rotated, while when the oe 'sen' theiclutch band 3050 that it will actuator is' moved to fthe right, the feed wheel 15 will'remain stationary. This de- Ji'ce, thereforencts somewhatsimilar to a .pawl-and-ratchet. 1

r "I have herein pI'OVIdQCl means actuated by the lever 7 for giving this "vibratory move ,iment tothe actuator 32. :The base or frame 118 a standard 3'6firising from one end l thereof to whi'ch is pivoted a rock-shaft 37 ihaving one arm 38 thereof connected to the lever 7"by a link 39. '1 The other armO of 60' link '41" which in turn is connected'to an arm pivoted to thebase or frame at 43. This ;.a rm ;4 connected to a irod or slide 44 which is guided gin-suitable bearings 45 car- :n'lied.-by:the-'baseior..-'frame '18. Ihisfslide 44 theirock shaft is pivotally connected to a I is adapted .to engage said end of the actuator. The outer end of the slide @l fis bent laterally, -as shownat 48, and a spring 49 is connected to the end 48 and to a hQOikQd connection 50 which hooks over the connection 33 between the clutch band and 'tl-i'e actuator 32: The arm 40 of the rock shaft 37 is acted upon by a pulling spring 52.

Assuming that the let er"? isinits lowered position as shown by dotted lines Fig. 1

which is, the position it willassume when the 'drill'has entered the work, 'itwilhbe'seen that when the drill is "elevated from the workand the 'lever7 moves upwardly itwill operate through the link 39 toturn the rockshaft 37 thereby "to carry the arm 40 from the dotted-to the 'full line position Fig. v1. This movement of the arm'AO will operate through the link 41 and lever 42 tomove 'the slide ''to'the left Figs. '1. and 4 thereby bringin-gthe collar lti againstthe end of the actuator 32. l Vhen'this occurs the further 'IIIOVBIIlBllllOf'tllB'Slldt-E 44 will turn the actuator 32 to 'cause the cam surface 34L to tightenthe clutch band 30 about the drum 29, thus locking the actuator to thedrum, and the continuedfurther movement of the slide 4A will turn the drum and theifeed 2, thus feeding the work 17. forward. This lockingof'the clutch band 30 to the drum is effected by the cooperation of the slide and thespring49. 'This. spring is'under tension at all, times and it tends normally to move the-actuator 32 to the right Fig. so

designed. that during the initial upward movement of the lever"? necessary .to'withdraw'the drill from the ;,work, the slifded is moved forwardly sufliciently to bringthe collar .16 into engagement With'theactuatdr 32 and, therefor-gas soon as the drill has :been removed from'the'work the clutch'ban'd 30 will be gripped fto the drum 29 so that adjustment of the extent I -.ment, this ibemg herein accomplished :by? ad ustabIe means for limiting-the "movement during the further upward movement of the lever 7 the feed wheely15 willjbe moned q wa d y- VV'th' this attachment, therefore-,5 the operator needpayjno' attention to the; feeding of thej workj 17as it Wille'be fed automatirally at each upward movement ofthe drill. 'The device is constructed so; as to permit of feedingmove- 1 'of'th'e slide or red toward the left, Fig.

-11 I have shown roman purpose :aastop screw 62 which is adjustably mounted -.:-in

a. bracket- 63 -,carried; hythejhase18;.;andl

v F wheel 15 in the-direction of the arrow, Fig. V

which is situated in line with the slide at so that it will limit the movement of the slide to the left. It is the movement of the slide to the left which gives the feeding movement to the feed roll 15, and by means of the stop screw 62 the extent of this feeding movement can be regulated. It will, of course, be obvious that the drill 71 will be so adjusted that the hole will be bored to the proper depth when the slide 44 comes against the stop screw 63.

I have also shown an adjustable connection between the link 41 and the lever 42 which may also be made use of in controlling the extent of feeding movement. The lever 42 is shown as provided with a plurality of holes 60 into any one of Which may be entered the pin 61 that constitutes the pivotal connection between the link 41 and lever 42.

My invention is very simple in its construction and efiiective in operation. Since the operative parts are all sustained by the base or frame 18 which is detachably mounted on the work support 2, the device can be readily removed from or attached to any drill or boring machine by simply connecting the link 39 to or disconnecting it from the lever 7.

' I claim:

1. A feed device comprising a friction drum; a sweater arm; a flexibl 1 t n e' riaera tg 'said reruar r are: as

eii c in gt a rare .8 aia ggiig aa er i if at t? 'U n "ci bit r as is? :r xi sria na ag a c a nare 0 26 are ar eras ar a t tri -gee lie i manner if lh ass a p mg connecting said member with said t may be obta ned re:

s U {I 85%;; may be obta nefi tor five cents each, by addressing the Qomm ssioner rarer ea its?? a date hiaiifdii i:

Washington, 22, i3.

7 ends connected to said actuator at different points, a reciprocating member, adjustable means for regulating the extent of movement of the reciprocating member and thereby the extent of feed, a spring connecting said reciprocating member with said actuator and tending to swing the latter in a direction to loosen the friction band on the drum, and a collar on said reciprocating member adapted to engage said actuator as the member moves in one direction and thereby move said actuator in a direction opposite to that in which the spring tends to move it whereby the friction band is caused to grip the drum and thus turn the same.

e. A feed device comprising a friction drum, a floating actuator arm, a flexible friction'banden" l'ngthe'd m "and hay iiiits eras camtear ras pthatonat was {0 e estimon w ereo ave si ned to n n t p; g g i lave signed no; name to ans s cc 5 f 8: eraser.-

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